RS250
Dash Functions

This is a simplified version suitable for printing.  I have this posted on my toolbox at the shop because the owners manual is a bit overly stated.

Resetting the service light
     Key on
     Press Lap and R for 5 seconds
Switching KM/H to MPH
     Key on
     Press A about 5 seconds until blinking
     Press B to change unit of measurement
     Press A for 5 seconds to confirm choice
V max
     Uses trip odometer #1 (the odometer displayed during instantaneous speed)
     To reset trip odometer #1 press R for 2 seconds
     To display V max and distance of trip odometer 1 press B for 2 seconds
     To reset V max press R for 2 seconds
AVS (Average Speed)
     Uses trip odometer #2
     Hold down B for 2 seconds and then press again
     AVS is displayed along with distance of trip odometer #2
     To reset both AVS and trip odometer #2 press R for 2 seconds
Redline threshold (engine off only)
     Press C, release, and press again
     Release C when desired RPM is reached
Battery voltage
     Press D once
Setting hour
     Press D twice
     Press LAP until desired hour is reached
     Press D to confirm
Setting minutes
     Press D three times
     Press LAP until desired minutes is reached
     Press D to confirm
Setting °C or °F
     Press D a fourth time
     Press LAP to alternate units
Chronometer (Lap Timer)
     V max, AVS, and trip odometer #2 no longer function in this mode
     Press LAP and within 0.7 seconds press D to enter chronometer mode
     To start timing press LAP and release immediately
     To store a lap time press LAP
     To display lap times press B
     To cycle through the stored laps, press LAP
     To reset memory press A and LAP for 2 seconds
     To leave chronometer function press LAP and D